Home / 518,222,339.88-715,146,862.88-283,273,931.04

Finding the Fourth Proportional to 518,222,339.88, 715,146,862.88 and 283,273,931.04

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Solution

The fourth proportional to 518,222,339.88, 715,146,862.88 and 283,273,931.04 is: 390,918,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,222,339.88 : 715,146,862.88 = 283,273,931.04 : x
  2. Step 2: Convert to fraction form
    518,222,339.88/715,146,862.88 = 283,273,931.04/x
  3. Step 3: Cross multiply
    518,222,339.88x = 715,146,862.88 × 283,273,931.04
  4. Step 4: Simplify right side
    518,222,339.88x = 202,582,463,118,941,472
  5. Step 5: Solve for x
    x = 202,582,463,118,941,472/518,222,339.88
  6. Step 6: Final answer
    x = 390,918,043.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.